Uploaded file

Hi, How do I pass an uploaded file, from a form, to a class? I have a file type on the form called file. The variable $file is fine in my php code, can be used normally. But, I want to pass it to a class then manipulate the file, but it does not work. $cMyClass->fnManipulateFile($file); the function fnManipulateFile gets $file only as the path the file was temporarily uploaded to (tmp/98rsof398) but the other variables are blank, such as $file_name. is it possible to do this? or do I have to pass each one, like $file_name, $file_size, etc.? Thanks, Chris